发明授权
US07963334B2 Method and apparatus for continuously injecting fluid in a wellbore while maintaining safety valve operation
有权
在保持安全阀操作的同时在井筒中连续喷射流体的方法和装置
- 专利标题： Method and apparatus for continuously injecting fluid in a wellbore while maintaining safety valve operation
- 专利标题（中）： 在保持安全阀操作的同时在井筒中连续喷射流体的方法和装置
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申请号： US12752547申请日： 2010-04-01
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公开(公告)号： US07963334B2公开(公告)日： 2011-06-21
- 发明人: Thomas G. Hill , Jason C. Mailand , Cecil G. McGavern, III , Winfield M. Sides, III , Jeffrey L. Bolding
- 申请人： Thomas G. Hill , Jason C. Mailand , Cecil G. McGavern, III , Winfield M. Sides, III , Jeffrey L. Bolding
- 申请人地址： US TX Houston
- 专利权人： BJ Services Company, U.S.A.
- 当前专利权人： BJ Services Company, U.S.A.
- 当前专利权人地址： US TX Houston
- 代理机构： Zarian Midgley & Johnson PLLC
- 主分类号： E21B34/10
- IPC分类号： E21B34/10 ; E21B43/25
摘要：
A kit for converting an existing wireline retrievable surface controlled subsurface safety valve (170, 270, 370) into a bypass passageway apparatus (100) allowing the injection of production-enhancing fluid into a wellbore while maintaining the operation of the closure member (374). Bypass passageway (280) can extend between upper (260) and lower (275) adapters external to the existing wireline retrievable surface controlled subsurface safety valve (270) to allow fluid injection bypass thereof. Conversion kit can include a tubing string hanger to suspend a velocity tubing string (407, 507), a gas lift valve (475) for gas lift operations, a locking mandrel (220), and/or a spacer tube (240).
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